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The lactate permease is not necessary for the early stage of nasopharyngeal colonization. Bacteria were harvested from nasopharyngeal tissue explants 4 h after receiving 1.5 × 108 CFU of N. meningitidis. The numbers of recovered bacteria are shown (the 25th and 75th percentiles are indicated by the shaded box; Mann-Whitney, P > 0.05).
